Ajax drop down and upgrade of current functionality

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
Input box with graphic - onclick a drop down list is shown
List has several hundred items under 8 headings.

Similar to the menu funcionality at
http://www.tesco.com/direct/blinkbox/ but with far more items.
As so many items perhaps something like this is needed within the drop-down...

When an item is clicked that item text appears in text box.

Must be beautiful to use- must be able to see all items easily.

Job includes upgrade/repair/modification of several features on site.

To get the job post me a link to a working example you have made...
Please don't apply without a working example of your Jquery work live on the web.

Skills required:
AJAX, Javascript, MySQL, PHP
About the employer:
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